A mechanic from chiller unit supplier and PIVOT Mechanical Charge Hand were found opening the chiller control panel of 440V for replacing a liquid flow switch in the chiller unit, without following LOTO procedure and coordinating with the electrical team. They were working without a permit to work, verification of electrical isolation, coordination, training, and induction. The supplier technician was not provided with the necessary information on the PIVOT’s LOTO procedure and the supervision was inadequate/ incompetent.  CMA suspended the activity and advised PIVOT electrical supervisor to control the access to the chiller room. PIVOT to investigate the repeated failure in following LOTO procedure and to take appropriate disciplinary action against violators.
Hazard category: Electrical equipment and connections